This comp is a powerful late game comp that can be a transition if you have a very strong economy going into the late game. A majority of the items are magic damage focused, so utilize magic damage carrys to hold your items in the early and mid game.
Go for this comp if you win streak through most of the game and can transition to a late game team comp at level 8.
Level up to 4 early if you want to start a win streak. Level up to 5 to try and continue the streak.
If you're weak in the early game, you can opt to save gold and lose streak instead.
At Round 2, level up to 6 regardless of your start. Put together the strongest team you can.
At Round 1, level up to 7. Roll down to stabilize your comp if you are weak. Afterward, save up to hit level 8 and complete your comp.
Use just about anything you want, but try to win streak. Hellions provide an easy transition, but you can streak with any upgraded units you find.
If you continue using Hellions, you can still look to streak with them by going for 5 Hellions. If you are comfortable transitioning with other units, you can do that as well.
When looking to transition into this comp, use just about any magic damage item holder you can find. Examples of this are Lissandra, Ziggs, Viktor, Karma, Vel'Koz, etc.